Tea and coffee consumption in relation to vitamin D and calcium levels in Saudi adolescents.
Al-Othman A, Al-Musharaf S, Al-Daghri NM, Yakout S, Alkharfy KM, Al-Saleh Y, Al-Attas OS, Alokail MS, Moharram O, Sabico S, Kumar S, Chrousos GP.
Al-Othman A, et al.
Nutr J. 2012 Aug 20;11:56. doi: 10.1186/1475-2891-11-56.
Nutr J. 2012.
PMID: 22905922
Free PMC article.